6728743963 has 2 divisors, whose sum is σ = 6728743964. Its totient is φ = 6728743962.

The previous prime is 6728743919. The next prime is 6728743981. The reversal of 6728743963 is 3693478276.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6728743963 is a prime.

It is not a weakly prime, because it can be changed into another prime (6728743993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3364371981 + 3364371982.

It is an arithmetic number, because the mean of its divisors is an integer number (3364371982).

Almost surely, 2^6728743963 is an apocalyptic number.

6728743963 is a deficient number, since it is larger than the sum of its proper divisors (1).

6728743963 is an equidigital number, since it uses as much as digits as its factorization.

6728743963 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9144576, while the sum is 55.

The square root of 6728743963 is about 82028.9215033332. The cubic root of 6728743963 is about 1887.8957163857.

The spelling of 6728743963 in words is "six billion, seven hundred twenty-eight million, seven hundred forty-three thousand, nine hundred sixty-three".